| CASIMEA Consulting AB | Färjestaden | 0 tkr |
| CA Småland AB | Kalmar | 0 tkr |
| Caspiration AB | Rockneby | 0 tkr |
| CA Trailern 17 Trelleborg AB | Kalmar | 0 tkr |
| CBB AB | Kalmar | 0 tkr |
| CBB invest AB | Kalmar | 0 tkr |
| Ceasar Holding i Kalmar AB | Kalmar | 0 tkr |
| Cecilia Lundgren i Kalmar AB | Kalmar | 0 tkr |
| Cellsafe Europe AB | Kalmar | 0 tkr |
| Cetana Information i Kalmar AB | Kalmar | 0 tkr |
| CG Lai AB | Färjestaden | 0 tkr |
| C Gröhn Förvaltning AB | Ljungbyholm | 0 tkr |
| Charlotta & Tomas Begic AB | Helsingborg | 0 tkr |
| Chreskil AB | Rockneby | 0 tkr |
| Cityfastigheter Sydost AB | Kalmar | 0 tkr |
| Claesson & Anderzén Aktiebolag | Kalmar | 0 tkr |
| Claesson & Anderzén Hotellfastighets Aktiebolag | Kalmar | 0 tkr |
| Clasons Holding i Kalmar AB | Kalmar | 0 tkr |
| cleverco AB | Kalmar | 0 tkr |
| Click-In Patent AB | Kalmar | 0 tkr |
| Clown for a Crown AB | Kalmar | 0 tkr |
| CMW Kalmar AB | Nybro | 0 tkr |
| CNM Förvaltning AB | Rosenfors | 0 tkr |
| ConnectMedia Kalmar invest AB | Kalmar | 0 tkr |
| Conny Gustafsson Förvaltning AB | Kalmar | 0 tkr |
| Consus International Aktiebolag | Kalmar | 0 tkr |
| Core-Oli-T AB | Kalmar | 0 tkr |
| Cornbert Invest AB | Trekanten | 0 tkr |
| Cougou & Chili AB | Helsingborg | 0 tkr |
| CRITECO AB | Oskarshamn | 0 tkr |
| Cubo AB | Kalmar | 0 tkr |
| Cultura Familjehem AB | Kalmar | 0 tkr |
| Curovir AB | Kalmar | 0 tkr |
| Curt Tappert Utveckling AB | Färjestaden | 0 tkr |
| DA Förvaltning AB | Kalmar | 0 tkr |
| Dalbo Holding 1 AB | Kalmar | 0 tkr |
| Daleen i Läckeby AB | Läckeby | 0 tkr |
| Dalink AB | Kalmar | 0 tkr |
| Daniel Hägg Förvaltning AB | Rockneby | 0 tkr |
| Dariun AB | Kalmar | 0 tkr |
| David Mozart Invest AB | Linköping | 0 tkr |
| Demica AB | Kalmar | 0 tkr |
| Deveren Group AB | Kalmar | 0 tkr |
| DEVIGI group AB | Kalmar | 0 tkr |
| Devtube Invest AB | Färjestaden | 0 tkr |
| DFAS Resources AB | Kalmar | 0 tkr |
| Dfne Sweden AB | Färjestaden | 0 tkr |
| D Foleby Förvaltning AB | Kalmar | 0 tkr |
| DIK Lindström AB | Kalmar | 0 tkr |
| Divisionen 2 AB | Kalmar | 0 tkr |